Impact wrench



FIG. 1 is a left side perspective view showing our design for an impact wrench;

FIG. 2 is a back right side perspective view thereof;

FIG. 3 is a left side view, which is a mirror image of the right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a bottom view.

The broken line showing of portions of the impact wrench is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an impact wrench, as shown and described. 